linux-kernel - Re: [PATCH][kprobe] enabling booster on the preemptible kernel

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Message-ID: <45624BF2.8040906@hitachi.com>
Date:	Tue, 21 Nov 2006 09:44:34 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Ingo Molnar <mingo@...hat.com>
Cc:	"Keshavamurthy, Anil S" <anil.s.keshavamurthy@...el.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	"bibo,mao" <bibo.mao@...el.com>,
	Prasanna S Panchamukhi <prasanna@...ibm.com>,
	Andrew Morton <akpm@...l.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	SystemTAP <systemtap@...rces.redhat.com>,
	Yumiko Sugita <yumiko.sugita.yf@...achi.com>,
	Satoshi Oshima <soshima@...hat.com>,
	Hideo Aoki <haoki@...hat.com>
Subject: Re: [PATCH][kprobe] enabling booster on the preemptible kernel

Hi Ingo,

Ingo Molnar wrote:
> On Fri, 2006-11-17 at 21:35 +0900, Masami Hiramatsu wrote:
>> From: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
>>
>> This patch enables the kprobe-booster on the preemptible kernel.
>> For this purpose, I introduced a kind of garbage collector of
>> the instruction slots. This garbage collector checks safety before
>> releasing the garbage slots.
>>
>> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com> 
> 
> nice work - looks really sensible! This opens the door to djprobes (or
> rather, to the transparent kprobes speedup that used to be a separate
> interface), right?

Right. Actually, I already integrated djprobe and kprobes.
I'll post it as soon as possible.

> 
>  Acked-by: Ingo Molnar <mingo@...e.hu>

Thank you.

-- 
Masami HIRAMATSU
Linux Technology Center
Hitachi, Ltd., Systems Development Laboratory
E-mail: masami.hiramatsu.pt@...achi.com


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